:root{--gold:#d9af4f;--gold2:#b78d2c;--dark:#0f2440;--text:#18263a;--muted:#6b7280;--bg:#f7f2e9;--card:#fff;--danger:#b42318;--success:#067647;--line:#e8e0d2}*{box-sizing:border-box}body{margin:0;font-family:Tahoma,Arial,sans-serif;background:linear-gradient(135deg,#fff 0,#f9f1e3 100%);color:var(--text);line-height:1.7}a{color:inherit;text-decoration:none}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:14px 6vw;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px}.brand img{width:56px;height:56px;object-fit:contain;border-radius:15px;background:#faf7ef}.brand strong{display:block;color:var(--dark);font-size:18px}.brand span{display:block;color:var(--muted);font-size:12px}.topbar nav{display:flex;gap:8px;flex-wrap:wrap}.topbar nav a{padding:9px 13px;border-radius:999px;color:var(--dark)}.topbar nav a:hover{background:#f3ead6}.container{width:min(1120px,92vw);margin:34px auto;min-height:70vh}.footer{text-align:center;color:var(--muted);padding:28px}.hero{display:grid;grid-template-columns:1fr 260px;gap:40px;align-items:center;background:var(--card);padding:55px;border:1px solid var(--line);border-radius:34px;box-shadow:0 24px 70px rgba(30,20,10,.08)}.hero h1{font-size:42px;line-height:1.25;margin:0 0 12px;color:var(--dark)}.hero p{font-size:18px;color:#40506b}.hero img{width:240px;border-radius:28px}.eyebrow{color:var(--gold2)!important;font-weight:bold}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:12px;padding:10px 16px;background:#fff;color:var(--dark);font-weight:700;cursor:pointer;min-height:42px}.btn.primary{background:linear-gradient(135deg,var(--gold),var(--gold2));border:0;color:#fff}.btn.ghost{background:#fff8e8}.btn.success{background:#e9f8ef;border-color:#a9e8bf;color:var(--success)}.btn.small{font-size:12px;padding:6px 10px;min-height:30px}.install-wrap{min-height:100vh;display:grid;place-items:center;padding:25px}.install-card,.auth-card,.panel,.course-hero,.lesson-view{background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:0 18px 50px rgba(0,0,0,.06)}.install-card{width:min(930px,96vw)}.install-logo{width:118px;height:118px;object-fit:contain;border-radius:24px;display:block;margin:0 auto 12px}.install-card h1,.auth-card h1{text-align:center;color:var(--dark);font-size:30px}.install-card p{text-align:center;color:var(--muted)}.grid-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.grid-form h2{grid-column:1/-1;color:var(--dark);border-bottom:1px solid var(--line);padding-bottom:10px;margin:18px 0 0}.span-2{grid-column:1/-1}label{font-weight:700;color:var(--dark);display:block}input,select,textarea{width:100%;border:1px solid #d9dee7;border-radius:12px;padding:11px 13px;margin-top:7px;font:inherit;background:#fff;color:var(--text)}textarea{resize:vertical}.alert{padding:12px 14px;border-radius:14px;margin:10px 0;border:1px solid}.alert-success{background:#edfff5;color:#05603a;border-color:#abefc6}.alert-danger{background:#fff2f0;color:var(--danger);border-color:#fecdca}.alert-warning{background:#fffaeb;color:#93370d;border-color:#fedf89}.auth-card{width:min(520px,94vw);margin:60px auto}.auth-card p{text-align:center;color:var(--muted)}.small-link{display:inline-block;margin-top:12px;color:var(--gold2);font-weight:700}.page-head{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:20px}.page-head form{display:flex;gap:8px}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}.course-card{background:#fff;border:1px solid var(--line);border-radius:26px;overflow:hidden;box-shadow:0 14px 38px rgba(0,0,0,.05)}.course-card img{width:100%;height:170px;object-fit:cover;background:#f4efe4}.course-card div{padding:18px}.course-card h2{margin:7px 0;color:var(--dark)}.badge{background:#fff5dc;color:#9a6b11;padding:5px 10px;border-radius:999px;font-size:12px;font-weight:700}.progress{height:10px;background:#efe6d7;border-radius:999px;overflow:hidden;margin:10px 0}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--gold),var(--gold2))}.empty{background:#fff;border:1px dashed var(--line);border-radius:20px;padding:40px;text-align:center;color:var(--muted)}.course-hero{margin-bottom:22px}.course-hero h1{margin:0;color:var(--dark)}.lesson-section{background:#fff;border:1px solid var(--line);border-radius:22px;margin-bottom:16px;padding:20px}.lesson-section h2{margin-top:0;color:var(--dark)}.lesson-row{display:grid;grid-template-columns:40px 1fr 90px;gap:10px;align-items:center;padding:14px;border-top:1px solid #f0e7d8}.lesson-row:hover{background:#fffaf0}.lesson-row span{color:var(--success);font-weight:bold}.lesson-row em{font-style:normal;color:var(--muted);font-size:12px;text-align:left}.lesson-view h1{color:var(--dark)}.content-box{background:#fbfaf7;border:1px solid var(--line);border-radius:16px;padding:18px;margin:16px 0;white-space:normal}.video-box{position:relative;padding-top:56.25%;background:#000;border-radius:18px;overflow:hidden;margin:16px 0}.video-box iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.muted{color:var(--muted)}.admin-layout{display:grid;grid-template-columns:230px 1fr;gap:18px}.admin-menu{background:#fff;border:1px solid var(--line);border-radius:24px;padding:14px;height:max-content;position:sticky;top:100px}.admin-menu a{display:block;padding:12px;border-radius:13px;color:var(--dark);font-weight:700}.admin-menu a:hover{background:#fff5dc}.admin-content{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;overflow:auto}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0}.stats div{background:linear-gradient(135deg,#fff9ea,#fff);border:1px solid var(--line);border-radius:20px;padding:18px;text-align:center}.stats strong{display:block;font-size:32px;color:var(--gold2)}table{width:100%;border-collapse:collapse;margin-top:16px;background:#fff;border-radius:16px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid #eee;text-align:right}th{background:#f8f3e8;color:var(--dark)}details.panel summary{font-size:20px;font-weight:700;color:var(--dark);cursor:pointer}.two-panels{display:grid;grid-template-columns:1fr 1.4fr;gap:16px}.admin-list{background:#fbfaf7;border-radius:16px;padding:12px 28px}.admin-list li{padding:7px 0}@media(max-width:800px){.hero,.admin-layout,.two-panels,.grid-form{grid-template-columns:1fr}.hero{padding:28px}.hero h1{font-size:30px}.hero img{width:160px}.span-2{grid-column:auto}.topbar{align-items:flex-start;gap:10px;flex-direction:column}.page-head{display:block}.page-head form{margin-top:12px}.stats{grid-template-columns:repeat(2,1fr)}.lesson-row{grid-template-columns:30px 1fr}.lesson-row em{display:none}}